From e69ca9a070c84caeb8056dd28f03c2586718ca33 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sat, 20 Jan 2018 14:25:12 -0800
Subject: appveyor - changed syntax for adding ghc-options.

---
 appveyor.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/appveyor.yml b/appveyor.yml
index fb92275e1..fe53139bb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ environment:
   global:
     WIXBIN: "c:\\Program Files (x86)\\WiX Toolset v3.11\\bin"
     STACK_YAML: "c:\\pandoc\\stack.yaml"
-    STACK_BUILD_OPTS: "-j1 --no-terminal --test --local-bin-path=.\\windows --ghc-options=-fexternal-interpreter"
+    STACK_BUILD_OPTS: "-j1 --no-terminal --test --local-bin-path=.\\windows --ghc-options='-fexternal-interpreter'"
     # see #4201, https://github.com/haskell-tools/haskell-tools/issues/277
   matrix:
   - STACK_VERSION: "windows-i386"
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